When it’s suggested that Graph Search works about half the time, Zuckerberg says that’s being generous. Vernal, the engineering vice president, says Graph Search was the last major product designed primarily for desktop computers. It’s now being redesigned for phones. He cites the opportunity to use a user’s location to deliver results relevant to where they are. If a user is traveling in New Zealand, for example, Facebook should serve up previous updates and insights from Facebook members who have visited Auckland. Vernal says harvesting all this data, amid some trillion status updates posted throughout Facebook’s history, is “a multiyear journey.”

A trillion status updates = SO WOW

Also, clearly Zuck is evolving. Search based on location is much more useful than search based on social, and even he now admits it.